EDIT: On some systems, you may need to register the three bundled OCX files with the system. To do this, open a command prompt (Administrator Command Prompt on Vista and later), and run the following comands:

EDIT: You may need to run regsvr32 on the three OCX files included with the Sonic Retro App. To do this, open a command line (Administrator command line on Vista or later), cd to the Sonic Retro App directory, and run the following commands:

regsvr32 mscomctl.ocx
regsvr32 coolbar4.ocx
regsvr32 picclp32.ocx

I tested this on a Win7 64-bit system and it seems to have worked. (Only coolbar4.ocx and picclp32.ocx needed registration; mscomctl.ocx already existed.) Also, some users have reported success when setting compatibility mode to Windows 98 or XP SP3.

Fucking lazy admins on here need to fix the bugs on their site. I get script errors when using the Sonic Retro App. I'm thinking about trashing firefox and just using the Sonic Retro App to browse Retro all day long!

I'm not sure if Windows 8 simply doesn't like VB6 apps or if it's some issue with OCX registration or whatnot, but I don't have any Windows 8 machines to test this. If you have an XP virtual machine, it should work there.

EDIT: It seems there's some compatibility issue with 64-bit Windows. I'll diagnose the issue and update the first post with a solution soon.